Andy, my experience is that the remote will NOT work from inside a building at all.
I once inadvertntly walked into my kitchen with the remote and lost connetion to my scope on the deck.
When that happens you are 'Toast'. There is no way to regain the connection without turning off the scope and starting over.
OTOH, I really like it for reducing the number of wires in use.
Dave
LX200GPS 8"
DSI Pro + LPI
Canon Rebel Xti
12 miles Northeast of Philadelphia